C++ Vector clear() function

by Online Tutorials Library July 22, 2022

C++ Vector clear()

This function removes all the elements from the vector.

Syntax

Consider a vector v. Syntax would be:

Parameter

It does not contain any parameter.

Return value

It does not return any value.

Example

Let’s see a simple example.

  #include<iostream>  #include<vector>  using namespace std;  int main()  {  vector<int>  v{1,2,3,4,5};  cout<<“Elements of v vector are :”;  for(int i=0;i<v.size();i++)  cout<<v[i]<<” “;  v.clear();  for(int i=0;i<v.size();i++)  cout<<v[i];  return 0;  }  

Output:

Elements of v vector are :1 2 3 4 5

In this example, clear() function removes all the elements from the vector.

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C++ Vector clear() function

C++ Vector clear()

Syntax

Parameter

Return value

Example

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